Quality Control Technician -3rd Shift ACH Food Companies IncQuality Control Technician -3rd ShiftSummit, IL$47,300–$58,380 / yearMathematical Reasoning - Ability to use mathematical techniques to calculate data or solve practical problems with a high level of knowledge and accuracy in math calculations. Compares test results with current specifications and advises supervisory and production personnel of problems and/or out-of-code situations.
Coil Winder - 3rd Shift Woodward L'OrangeCoil Winder - 3rd ShiftNiles, IllinoisProficiently to perform 3 of the following tasks: winding and ball fusing; prepare wires and cables for solder and encapsulation; perform post encapsulation processes, which includes finishing, epoxy sealing and potting, identifying; electrical testing, which includes hi-potential, resistance measurement; and polarity testing; and setup and operate transfer molding presses for coil and cable molding. Completes and reviews product paperwork, verifying all paperwork is present and filled out appropriately and complete computer entries accurately and in a timely manner.
Machinist 1 - 3rd shift 10PM-6:30AM Woodward L'OrangeMachinist 1 - 3rd shift 10PM-6:30AMNiles, IllinoisKnowledge of CNC (Computer Numerically Controlled) programming/machining including the ability to read, understand, edit basic programs and/or basic knowledge of one or more of the following skills - grinding, turning, milling, drilling. Machinist reports to the manufacturing supervisor and is responsible for setting up, operating and maintaining a limited number of machine types in an industrial setting.
Machinist 1 (Gear Cutting) -3rd Shift, M-F 10PM- 6:30PM Woodward L'OrangeMachinist 1 (Gear Cutting) -3rd Shift, M-F 10PM- 6:30PMNiles, IllinoisKnowledge of CNC (Computer Numerically Controlled) programming/machining including the ability to read, understand, edit basic programs and/or basic knowledge of one or more of the following skills - grinding, turning, milling, drilling. Machinist reports to the manufacturing supervisor and is responsible for setting up, operating and maintaining a limited number of machine types in an industrial setting.
Machinist II/III (CNC Lathe Twin Spindle) 3rd Shift M-F 10PM- 6:30AM Woodward L'OrangeMachinist II/III (CNC Lathe Twin Spindle) 3rd Shift M-F 10PM- 6:30AMNiles, IllinoisKnowledge of CNC (Computer Numerically Controlled) programming/machining including the ability to read, understand, edit basic programs and/or basic knowledge of one or more of the following skills - grinding, turning, milling, drilling. Intermediate ability to read, interpret and use the information presented in drawings, diagrams and blueprints to determine appropriate activities, tools, and next steps in the production process.
Machinist II (CNC EDM) 3rd Shift M-F 10PM- 6:30AM Woodward L'OrangeMachinist II (CNC EDM) 3rd Shift M-F 10PM- 6:30AMNiles, IllinoisKnowledge of CNC (Computer Numerically Controlled) programming/machining including the ability to read, understand, edit basic programs and/or basic knowledge of one or more of the following skills - grinding, turning, milling, drilling. Intermediate ability to read, interpret and use the information presented in drawings, diagrams and blueprints to determine appropriate activities, tools, and next steps in the production process.
Machinist I (CNC Milling) - 3rd Shift 10PM-6:30AM Woodward L'OrangeMachinist I (CNC Milling) - 3rd Shift 10PM-6:30AMNiles, IllinoisKnowledge of CNC (Computer Numerically Controlled) programming/machining including the ability to read, understand, edit basic programs and/or basic knowledge of one or more of the following skills - grinding, turning, milling, drilling. All applicants must be U.S. Persons within the meaning of the ITAR and EAR, or eligible to obtain all required authorizations from the U.S. Department of State and/or the U.S. Department of Commerce.
Cardiac Monitoring Technician - 3rd Shift iRhythmCardiac Monitoring Technician - 3rd ShiftDeerfield, IllinoisThe Cardiac Monitoring Technician for the Clinical Operations team supports Zio AT Services, responsible for delivering high-quality patient care through accurate ECG analysis in a fast-paced, collaborative environment. Candidates are required to possess a valid Certified Cardiographic Technician (CCT) certification or other approved licenses or certifications (e.g., Registered Nurse (RN) or Paramedic (EMT-P)) may be accepted in lieu of CCT certification, in accordance with company policy.
Machinist II (CNC Milling) 3rd Shift, M-F 10PM- 6:30AM) Woodward L'OrangeMachinist II (CNC Milling) 3rd Shift, M-F 10PM- 6:30AM)Niles, IllinoisKnowledge of CNC (Computer Numerically Controlled) programming/machining including the ability to read, understand, edit basic programs and/or basic knowledge of one or more of the following skills - grinding, turning, milling, drilling. Intermediate ability to read, interpret and use the information presented in drawings, diagrams and blueprints to determine appropriate activities, tools, and next steps in the production process.
Machinist 1 (Gear Cutting) -3rd Shift, M-F 10PM- 6:30AM Woodward L'OrangeMachinist 1 (Gear Cutting) -3rd Shift, M-F 10PM- 6:30AMNiles, IllinoisKnowledge of CNC (Computer Numerically Controlled) programming/machining including the ability to read, understand, edit basic programs and/or basic knowledge of one or more of the following skills - grinding, turning, milling, drilling. Machinist reports to the manufacturing supervisor and is responsible for setting up, operating and maintaining a limited number of machine types in an industrial setting.
3rd Shift Production Worker - Buffalo Grove, IL Volt Information Sciences Inc3rd Shift Production Worker - Buffalo Grove, ILBuffalo Grove, IL$18–$19.80 / hourApply for tomorrows opportunity today with VoltVolt is immediately hiring for3rd Shift Production Workers - Buffalo Grove ILClimate Controlled- Great Company Culture- Your Safety is our 1 Concern- Weekly Pay- Direct Deposit or Money Cards- Temp to Hire. Shifts 12-hour rotational shifts6pm to 6amPay range offered to a successful candidate will be based on several factors including the candidates education work experience work location specific job duties certifications etc.
Automation Technician 3rd shift Burgess Norton Mfg CoAutomation Technician 3rd shiftGeneva, ILPart timeThis includes fixtures, conveyors, grippers, pin stamper, and brush set-up to meet process specifications required to run operation, and obtaining all necessary paperwork needed. Amsted Automotive Powder Metal Division in Geneva, IL is seeking a 3rd shift Automation Technician to perform duties to set-up, program, troubleshoot, and repair automation equipment.
3rd Shift Full-Time Warehouse Associate (Inbound) Aldi Inc3rd Shift Full-Time Warehouse Associate (Inbound)Batavia, IL$24.75–$27.25 / hourOur warehouse operations make sure that products are properly received, selected and delivered to our stores for our ever-growing number of customers to enjoy. Continuously works in varying temperatures, hot and cold including outdoor temperatures and refrigerator/freezer environments.
Warehouse Lead - Transportation (3RD SHIFT) The ODP CorpWarehouse Lead - Transportation (3RD SHIFT)Chicago, ILAbout The ODP Corporation: The ODP Corporation is a leading provider of products and services through an integrated business-to-business (B2B) distribution platform and omnichannel presence, which includes world-class supply chain and distribution operations, dedicated sales professionals, online presence, and a network of Office Depot and OfficeMax retail stores. Primary Responsibilities: Coordinate and direct daily warehouse operations, monitor production, and resolve operational issues - Allocate work at shift startup, oversee warehouse management systems and equipment, and reallocate resources to address barriers and ensure smooth workflow.
Inventory Clerk - 3rd Shift CJ Logistics CorpInventory Clerk - 3rd ShiftMatteson, IL$21–$23 / hourAs a lead logistics partner (LLP), third-party logistics provider (3PL) and supply chain consultant, we help customers leverage supply chain management as a competitive advantage, reducing total system costs, transforming business processes, improving service and facilitating growth and change. CJ Logistics About Statement: At CJ Logistics America, we know that we do our best work when we have an inclusive and diverse team, where we can draw on our different life experiences to help us deliver innovative solutions for our customers.
3rd Shift General Labor/Packer Post Holdings Inc3rd Shift General Labor/PackerLansing, IL$16.30–$18.10 / hourBusiness Unit Overview Michael Foods, Inc. is a leader in the food processing and distribution industry with business in egg products, refrigerated grocery and potato products. Location Description Our plant, located in Lansing, IL, pasteurizes raw eggs to remove harmful bacteria for a more safe product to the foodservice industry.
3rd shift General Labor Packer Post Holdings Inc3rd shift General Labor PackerLansing, IL$16.30–$18.10 / hourMichael Foods, Inc. is a leader in the food processing and distribution industry with business in egg products, refrigerated grocery and potato products. Our plant, located in Lansing, IL, pasteurizes raw eggs to remove harmful bacteria for a more safe product to the foodservice industry.
3rd Shift Forklift Operator Advance Services3rd Shift Forklift OperatorWoodridge, ILAs a 3rd Shift Forklift Operator, you'll be the backbone of our overnight operations, ensuring that shipments and inventory flow seamlessly. Your focus on safety, accuracy, and organization will help us meet deadlines and maintain a clean, well-managed warehouse environment.
Maintenance Technician (2nd & 3rd Shift) Inova StaffingMaintenance Technician (2nd & 3rd Shift)West Chicago, ILPerform maintenance, repairs, and installations on production equipmentTroubleshoot mechanical, hydraulic, and pneumatic systemsDismantle equipment, identify defective parts, and complete repairs or replacementsOperate shop equipment such as lathes, drill presses, grinders, band saws, and welding toolsMaintain and improve equipment reliability through preventive maintenance practicesOperate forklifts and hydraulic lifts as neededResearch and source parts, tools, and supplies for maintenance tasksMaintain accurate maintenance logs, records, and documentationAssist with inventory tracking of maintenance partsFollow all safety, health, and environmental policiesMaintain a clean and organized work areaSupport continuous improvement initiativesPerform other duties as assigned . Frequent standing, walking, bending, kneeling, and lifting (up to 55 lbs; moving heavier items with equipment)Ability to work in a loud manufacturing environmentExposure to heat, humidity, moving machinery, and airborne particlesOccasional exposure to heights, outdoor conditions, and hazardous materialsRequired use of PPE including safety glasses, steel-toe boots, hearing protection, gloves, and other equipment as needed.
3rd Shift Maintenance Technician Advance Services3rd Shift Maintenance TechnicianWest Chicago, ILYour multi-skilled expertise will support a range of craft disciplines, making you a versatile and valuable team member dedicated to keeping our plant running at peak performance. As a key contributor to plant operations, you will complete maintenance assignments with speed and precision, ensuring all machinery and equipment remain in excellent operating condition.
3rd Shift Machine Operator Advance Services3rd Shift Machine OperatorCarol Stream, ILJoin our dynamic team as a Machine Operator and play a crucial role in delivering high-quality manufacturing outcomes. This position offers the opportunity to work with state-of-the-art equipment in a fast-paced, safety-conscious environment, where your skills directly impact our production success.
3rd Shift Production Technician Advance Services3rd Shift Production TechnicianWoodridge, ILIf youre ready to play a crucial role in a thriving manufacturing operation, dont hesitateapply now and bring your skills to a team that values precision and dedication! Take charge of ensuring smooth and efficient manufacturing processes as a Production Technician in a dynamic, fast-paced environment.
MAINTENANCE MECHANIC, 3RD SHIFT Clyde's DonutsMAINTENANCE MECHANIC, 3RD SHIFTAddison, IL$30–$38 / hourReporting to the Maintenance Supervisor, the Maintenance Mechanic performs mechanical and electrical preventative maintenance, troubleshooting, and repair of production, packaging, physical plant and warehouse equipment including heating and refrigeration systems, conveyors, motors, and related components. Perform electrical repairs and troubleshoot for the following: PLC controls, AC & DC motor controls, solid state motor controls, advance circuits, and grounding, interpret diagrams and test equipment.
Operations Associate II, 3rd shift, 10 pm to 6:00 am, Mon-Fri Entegris IncOperations Associate II, 3rd shift, 10 pm to 6:00 am, Mon-FriAurora, IL$21–$23 / hourPerform miscellaneous production-related tasks (for example, cycle count, preventive maintenance, housekeeping, inventory) What We Seek: Technical - knowledge of manufacturing equipment Computer - Ability to perform data entry tasks, communicate through email, knowledge of Excel, ERP systems like SAP. What You'll Do: Manufacture Entegris CMP Pads using a variety of manufacturing equipment (laminator, CNC, die press, brush clean) Perform required data entry and record keeping.
Chemical Operator, 3rd shift, Sun-Thur, 10:30 pm- 6:30 am Entegris IncChemical Operator, 3rd shift, Sun-Thur, 10:30 pm- 6:30 amAurora, IL$21–$23 / hourThe Role: Our site in Aurora Illinois is seeking a Chemical Operator This is an opening for an Operations Associate in the Slurries Production Division on the 3rd Shift - an excellent career opportunity for qualified individuals, especially those with chemical batch manufacturing experience. Perform miscellaneous production and warehouse related tasks (for example, cycle count, preventive maintenance, housekeeping, inventory, incident investigation).
Automation Technician 2nd or 3rd shift Harting AG & Co KGAutomation Technician 2nd or 3rd shiftElgin, ILWe develop, manufacture, and sell the world's most durable and reliable products and solutions for use in Machinery & Robotics, Automation Devices, Rail & Transportation, Intralogistics & Conveyor Systems, Energy, and Datacenter market segments. Make adjustments in coordination with the responsible group leader (e.g., additional maintenance supplementary to manufacturer specifications, adjustment of maintenance cycles).
Saw Operator - 3rd Shift Ryerson Inc.Saw Operator - 3rd ShiftUniversity Park, IL$25.32–$28.72 / hourAs a Saw Operator with Central Steel & Wire, you will be responsible for ensuring accuracy and quality when cutting material in accordance with technical drawings and specifications. A starting wage higher than $25.32 per hour is based on a level of experience and education that significantly exceeds the minimum requirements and is commensurate with the compensation scale.
Custodian/Maintenance Technician, 3rd Shift Northwestern UniversityCustodian/Maintenance Technician, 3rd ShiftEvanston, IL$17.25–$17.50 / hourSpecific Responsibilities: Maintenance/Custodial Services: Uses machines or other tools as needed to clean, renovate, and renew floor surface finishes; to sweep, dry mop, wet mop or machine scrub and wax floor; to sweep and shovel snow or remove debris from steps and walks; to vacuum rugs and carpets; to move furniture, office equipment, supplies, etc. Northwestern University's Residential Services helps build a community environment for students through housing-related services, intentional learning opportunities and residential settings that include residence halls, residential communities, and residential colleges.
Warehouse Operator - 3rd Shift Ryerson Inc.Warehouse Operator - 3rd ShiftUniversity Park, IL$22.25–$26.91 / hourAs a Warehouse Operator, you will be responsible for day-to-day staging and loading material for shipments using proper equipment including overhead cranes and forklifts. Salary: $22.25 - $26.91 per hour (A starting salary higher than $22.25 per hour is based on a level of experience and education that significantly exceeds the minimum requirements and is commensurate with the compensation scale.
3rd Shift Custodian TOWNSHIP HIGH SCHOOL DISTRICT 2113rd Shift CustodianSchaumburg, ILMaintain the Fixed Asset records to include additional, replacement and disposed of fixed asset inventory. Performs other duties as assigned by the Third Shift Supervisor and/or Building and Grounds Manager & the Director of Purchasing & Facilities.
3rd Shift Operations & Maintenance Specialist II - Aquarium Systems Association of Zoos and Aquariums3rd Shift Operations & Maintenance Specialist II - Aquarium SystemsChicago, IL$27–$33 / hourAZA-accredited zoos and aquariums, Related Facilities, Commercial Members, Conservation Partners and Society Partners may post free unlimited online job listings as a member benefit. As an O&M Specialist, you'll: Operate & maintain critical systems - including HVAC, boilers, pumps, life support systems, valves, filters, and other facility equipment.
3rd Shift Rolling Mill Operator Chase Brass and Copper Co LLC3rd Shift Rolling Mill OperatorWheeling, IL$21–$26 / hourInvolves periods of standing, walking, and negotiating stairs, ladders, elevated catwalks, and platforms in hot or cold production environment on slippery surfaces for the purpose of directing operations and evaluating situations.13. The Rolling Mill Operator (Level 1) will be responsible for safely and efficiently operating the RM-1 Rolling Mill with a team member (Operator 2) using established metallurgical guidelines.
HIS CNC Operator - Spin Former 3rd Shift AB SKFHIS CNC Operator - Spin Former 3rd ShiftElgin, ILGrowth opportunities, voluntary critical illness coverage, employee assistance program, life insurance, vehicle discount programs, mobile phone discounts, and with so many benefits to working for SKF, we could not name them all! Operators will perform product inspections and precise measurements using a multitude of different measuring devices from Calipers to PI Tape.
3rd Shift Machine Operator (Rolling Mill) Chase Brass and Copper Co LLC3rd Shift Machine Operator (Rolling Mill)Wheeling, IL$21–$26 / hourInvolves periods of standing, walking, and negotiating stairs, ladders, elevated catwalks, and platforms in hot or cold production environment on slippery surfaces for the purpose of directing operations and evaluating situations. The Rolling Mill Machine Operator will be responsible for safely and efficiently operating the Rolling Mill with a team member (Operator 2) using established metallurgical guidelines.
New3rd Shift Production Material Handler- Reach Truck – Picking to Line Redwood Logistics3rd Shift Production Material Handler- Reach Truck – Picking to LineRomeoville, IL$22–$26 / hourThe actual base salary offered will depend on a variety of factors, including the qualifications of the individual applicant for the position, years of relevant experience, specific and unique skills, level of education attained, certifications or other professional licenses held, and the geographical location in which the applicant lives and/or which they will be performing the job. Leveraging a comprehensive range of services, data-centric network solutions, and a seamlessly integrated platform, we have established our prominence as a key player in the mid-market segment within the freight tech industry.
Security Operations Center Operator - 2nd/3rd Shift - Chicago, IL Titan Security GroupSecurity Operations Center Operator - 2nd/3rd Shift - Chicago, ILChicago, IllinoisDue to the nature of this assignment, special attention is paid to those candidates that are able to successfully demonstrate: A work history illustrating a progressively increasing security/customer service related skill sets and responsibilities with an emphasis in a supervisory capacity work, communication center protocol, knowledge of security operations, in addition to an advanced level computer proficiency/technological skills, specifically as it relates to established physical security needs. The SOC Operator is responsible for monitoring security systems, coordinating emergencies, compiling daily reports, replying to email and phone inquiries and general workplace duties, as needed.
3rd Shift Machine Operator (Weekends Required) Chase Brass and Copper Co LLC3rd Shift Machine Operator (Weekends Required)Wheeling, ILMachine Operator Responsibilities: Responsible for the set-up and operation of Fin Tube machines ( understanding tube types, material dimensions, identifying of defects, understanding tube structure to identify condenser/boiler conformance or nonconformance) to achieve a series of progressive milling operations, while holding precise tolerances and finishing requirements per customer drawings. This role is primarily responsible for (operation, housekeeping and other functional attributes) of the Fin Tube milling centers, creating product for quality review, the preparation and review of material scans for the start of production, conducting quality check during production, assigned tasks also include operation of the Overhead crane as needed.
Warehouse Supervisor - 3rd Shift (11:00p-7:00a M-F) Atkore IncWarehouse Supervisor - 3rd Shift (11:00p-7:00a M-F)Harvey, IL$62,480–$85,910 / yearPlacement in the range depends on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, relevant experience, skills, seniority, performance, shift, travel requirements, and business or organizational needs and may change over time. Coordinate & plan all activity on the distribution center docks, including the timing and location for carriers to be loaded; transportation types include flatbed, dry van, containers, LTL, and will call and small parcel.
Manufacturing Supervisor - 3rd Shift Atkore IncManufacturing Supervisor - 3rd ShiftHarvey, IL$71,120–$97,790 / yearReporting to the Production Manager, this person will be responsible for supervising and leading the machine operating staff with an emphasis on teamwork, continuous improvement, and have full ownership for the shift safety, quality, delivery, and productivity performance. Instill and maintain a positive "can-do" team atmosphere within the value stream by holding regular team meetings, assigning tasks to team members, empowering team member decision-making, and coordinating support services.
Warehouse Lead - Yard Jockey (3RD SHIFT) ODP Business Solutions LLCWarehouse Lead - Yard Jockey (3RD SHIFT)Chicago, IL$18.74–$25.30 / hourAbout The ODP Corporation: The ODP Corporation is a leading provider of products and services through an integrated business-to-business (B2B) distribution platform and omnichannel presence, which includes world-class supply chain and distribution operations, dedicated sales professionals, online presence, and a network of Office Depot and OfficeMax retail stores. Primary Responsibilities: Coordinate and direct daily warehouse operations, monitor production, and resolve operational issues - Allocate work at shift startup, oversee warehouse management systems and equipment, and reallocate resources to address barriers and ensure smooth workflow.
NewProduction Supervisor I - 3Rd Shift (395) NOW Health GroupProduction Supervisor I - 3Rd Shift (395)Bloomingdale, IllinoisSupports positive employee relations, fair treatment and respect in all aspects of interaction with employees; address employee concerns/requests in a timely and caring manner; insures all employees and ideas are respected and valued and their unique and diverse perspectives are leveraged to improve business results. Participates in the scheduling process including advance production schedule review to communicate issues in a proactive, timely manner for resolution; coordinates and communicates schedule to Leads and employees to assure daily production schedules are met.
Production Supervisor I - 3Rd Shift (391) NOW Health GroupProduction Supervisor I - 3Rd Shift (391)Bloomingdale, IllinoisSupports positive employee relations, fair treatment and respect in all aspects of interaction with employees; address employee concerns/requests in a timely and caring manner; insures all employees and ideas are respected and valued and their unique and diverse perspectives are leveraged to improve business results. Participates in the scheduling process including advance production schedule review to communicate issues in a proactive, timely manner for resolution; coordinates and communicates schedule to Leads and employees to assure daily production schedules are met.
Fontanini Maintenance Mechanic- 3rd Shift Hormel Foods CorpFontanini Maintenance Mechanic- 3rd ShiftIL$30–$42 / hourMaintenance Mechanics are responsible for ensuring operation of machinery and mechanical equipment by completing preventive maintenance requirements on production machines; following diagrams, sketches, operations manuals, manufacturers instructions, and engineering specifications; troubleshooting malfunctions. Pay Range: The base pay range starts at $30.00-$42.00 per hour however, actual compensation is influenced by a wide array of factors including, but not limited to, job-related knowledge, skill set, level of experience, and specific office location.
Maintenance Technician 3rd Shift Carlisle Companies IncMaintenance Technician 3rd ShiftFranklin Park, IL$33–$35 / hourThe Maintenance Technician works independently and with other plant personnel to perform preventive, predictive and routine maintenance tasks to ensure electrical equipment and controls are fully operational and safe. Carlisle Construction Materials, a worldwide leading diversified manufacturer of premium building products and related technology has an immediate opening for a Maintenance technician on 3rd Shift, at its Franklin Park location.
Chemical Process Technician - 3rd Shift Allied Tube and Conduit CorporationChemical Process Technician - 3rd ShiftHarvey, IL$46,320–$63,690 / yearPart timePlacement in the range depends on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, relevant experience, skills, seniority, performance, shift, travel requirements, and business or organizational needs and may change over time. Atkore is forging a future where our employees, customers, suppliers, shareholders, and communities are building better together – a future focused on serving the customer and powering and protecting the world.
Chemical Process Technician - 3rd Shift Atkore IncChemical Process Technician - 3rd ShiftHarvey, IL$46,320–$63,690 / yearPlacement in the range depends on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, relevant experience, skills, seniority, performance, shift, travel requirements, and business or organizational needs and may change over time. Who we are: Atkore is forging a future where our employees, customers, suppliers, shareholders, and communities are building better together - a future focused on serving the customer and powering and protecting the world.
Custodian I - Part-Time - 3rd Shift Elgin Community CollegeCustodian I - Part-Time - 3rd ShiftElgin, ILAbout ECC: Elgin Community College serves over 9,000 students at every stage of their educational journeys, including university transfer programs, career and technical education, continuing education classes, and adult basic education. Environmental Conditions: Typical office or administrative Outdoor weather Wet or Humid conditions (non-weather related) Extreme cold (below 32 degrees for more than one hour) Extreme heat (above 100 degrees for more than one hour).
Stationary Engineer-3rd Shift Ferrara Candy Company IncStationary Engineer-3rd ShiftChicago, ILObserve pressure/temperature gauges and panel view screens to verify specified operation automatic combustion control systems, feed water regulators, and burners. The Stationary Engineer manages the plant equipment, conducting preventative maintenance and project work as needed to ensure the operation of the plant and safety of employees.